Gas operated pump for hydrocarbon wells

a technology of hydrocarbon wells and pumps, which is applied in the direction of non-positive displacement pumps, wellbore/well accessories, fluid removal, etc., can solve the problems of limiting the injectivity of fluid (heated or cold) into the formation, reducing production, and reducing the production of hydrocarbons, so as to improve hydrocarbon production and production. , the effect of improving production

a technology of hydrocarbon wells and pumps, which is applied in the direction of non-positive displacement pumps, wellbore/well accessories, fluid removal, etc., can solve the problems of limiting the injectivity of fluid (heated or cold) into the formation, reducing production, and reducing the production of hydrocarbons, so as to improve hydrocarbon production and production. , the effect of improving production

US20060081378A1Inactive Publication Date: 2006-04-20WEATHERFORD TECH HLDG LLC
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  • Gas operated pump for hydrocarbon wells
  • Gas operated pump for hydrocarbon wells
  • Gas operated pump for hydrocarbon wells

Examples

Experimental program
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Embodiment Construction

[0032] Embodiments of the present invention includes an apparatus and methods for producing hydrocarbon wells. FIG. 1 shows a partial cross-sectional view of a gas operated pump 100 disposed in a horizontal wellbore for use in a Steam Assisted Gravity Drainage (SAGD) operation. Although FIG. 1 illustrates the pump 100 for use in a SAGD operation, it should be understood that the pump 100 may be employed in many different completion operations such as in vertical or horizontal gas or petroleum wellbores, vertical or horizontal steam drive and vertical or horizontal cyclic steam drive. This invention utilizes high pressure gas as the power to drive the invention. It should be understood that gas refers to natural gas, steam, or any other form of gas. In a typical SAGD operation there are two coextensive horizontal wells, a lower well 105 and an upper injection well 110. As shown in FIG. 1, the upper injection well 110 includes casing 115 on the vertical portion of the wellbore. At the...

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Abstract

Apparatus and methods for improving production from a wellbore are provided. In one embodiment, a downhole pump for use in a wellbore includes a chamber for accumulating formation fluids and a valve assembly for filling and venting gas to and from the chamber. In another embodiment, a gas operated pump for moving wellbore fluids in a wellbore includes a chamber for accumulating wellbore fluids, wherein the chamber in fluid communication with a production tubular and a surface mounted valve assembly in fluid communication with the chamber, wherein the valve assembly adapted to regulate gas flow to or from the chamber. In another embodiment, the valve assembly comprises a removable control valve disposed in a housing.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation-in-part of co-pending U.S. patent application Ser. No. 10 / 349,501, filed on Jan. 22, 2003, which application claims benefit of co-pending U.S. Provisional Patent Application Ser. No. 60 / 350,673, filed on Jan. 22, 2002, which applications are herein incorporated by reference in their entirety.BACKGROUND OF THE INVENTION [0002]1. Field of the Invention [0003] Apparatus and methods of the present invention relate to artificial lift for hydrocarbon wells. More particularly, the invention relates to gas operated pumps for operating a wellbore. More particularly still, the invention relates to a method and an apparatus for improving production from a wellbore. [0004] 2. Background of the Related Art [0005] Throughout the world there are major deposits of heavy oils which, until recently, have been substantially ignored as sources of petroleum since the oils contained therein were not recoverable using ordina...

Claims

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Application Information

Patent Timeline
20 Apr 2006
Publication
US20060081378A1
IPC
E21B43/00; E21B43/12; E21B43/24; F04F1/08
CPC
E21B43/12; E21B43/129; E21B43/2406; E21B43/305; F04F1/08
Inventors
HOWARD, WILLIAM F.; WILTSE, DARREN J.